古水流 meaning in English
palaeocurrentpaleocurrent
paleocurrent
Examples
- 3 . the mesozoic paleogeography of the north margin of the dabie orogenic belt was established according to the paleocurrent study
通过古水流研究，恢复了大别造山带北缘中生代的古地理。 - Methods based on comprehensive analysis of isopaches , sadstone percentage , paleocurrent and sadstone content , a reaserch is made on the sedimentary environment of upper permian shiqianfeng formation in the southern of north china
方法根据岩石碎屑组分基本数据，运用地层厚度、砂岩百分含量、古水流、砂岩成分的系统分析方法。 - On the basis of the types of sand stone , light and heavy mineral associations , planimetric map of sedimentary facies and directions of palaeoflow , it is considered that detrital material of terrigenous deposit of chang6 - 8 oil - beds in this area come from southwest provenance , northeast provenance , west provenance and south provenance , respectively , which are the denudation area of huating - longxian county in southwestern , yinshan ancient land in the northern , the denudation area of yantong mountain and tongxin to the west of yangjiajuzi - yinjiacheng county and qinling ancient land in the southern
根据砂岩类型、轻、重矿物组合、沉积相带平面展布及古水流方向等特征的分析，认为研究区延长组长6 ? 8油层组陆源碎屑物质来自西南、东北、西部和南部四大物源区，分别为西南华亭?陇县一带剥蚀区，北部阴山古陆，西部的杨家咀子、殷家城以西的烟筒山、同心地区剥蚀区和南部秦岭古陆。 - Based on the synchronic seqence stratigraphic framework , through comprehensive investigation of the evaluation of seqence , the type of sedimentary facies and sedimentary system with it ' s area distribution , the domination of paleogeographic structure to paleocurrent and sedimentary system , draw a conclusion : the boundaries of the thickness of sequence was bounded by the boundary faults . the irregularity of sedimentary facies was dominated by base level rise to fall and accommodation
在建立等时层序地层格架的基础上，分析了层序的充填演化规律、沉积相和沉积体系的类型及其平面分布特征、古构造对古水流和沉积体系分布的影响，得出以下认识：层序发育的厚度受边界断层控制，层序内部沉积相的变化规律受基准面和可容纳空间的控制。 - Based on the direction of sources and the ratios of sandstone to formation of sedimentary rocks , together with the sedimentary structures and textures , paleocurrent direction and the characteristics of paleontology , etc . , the planimetric maps of sedimentary facies of each stages in the studied area are compiled in order to recognized the extension of dominant facies and the evlotionary history of sedimentary environment , hi the stage of benxi and taiyuan , lagoon - tidal flat sediments are widespread in the area , and the deposits of estuary , lagoon and small delta in the northwest margin of ordos
以物源方向和沉积岩砂地比值为基础，结合沉积结构构造、古水流方向及古生物特征等，编制了研究区各期次的沉积相平面图，以识别优势相展布和沉积环境演化。本溪期和太原期研究区泻湖?潮坪沉积分布广泛，西北缘发育河口湾、泻湖及小型三角洲沉积。